Vincent Franstyo
Vincent, most days

Hi, I'm Vincent Franstyo.

Most folks call me Vincent.

I am a software engineer in Jakarta. Right now that means building AI-powered growth systems at QuantumBytes — the ad funnel, the analytics underneath it, and the agents that do the boring parts.

Before this I migrated enterprise systems onto ASP.NET, built an adaptive assessment platform that 90% of its MSME users actually adopted, and taught a transformer to read Indonesian payment receipts.

The through-line: I ship the whole thing, then measure whether it worked.

Email meCV

The Journey

Roles so far, newest first.

  1. Mid-Level Software Engineer

    PT Quantum Teknologi Nusantara · Nov 2025 - Present · Jakarta
    • I built our compliance-audit lead funnel end to end — landing flow, scoring, CRM handoff — and it now turns cold ad traffic into over a thousand qualified leads.
    • I designed the PostHog event taxonomy the whole team reads from, so growth experiments compare against one shared vocabulary instead of ad-hoc event names.
    • I keep our services honest on Kubernetes: deploys, rollbacks, and the occasional late-night incident that teaches you where the real bottleneck lives.

  2. Full Stack Web Developer

    PT Fata Organa Solusi - CAC · Jun 2024 - May 2025 · Hybrid, Tangerang
    • I migrated a legacy enterprise system onto ASP.NET with a CQRS architecture, splitting reads from writes so heavy reporting stopped dragging down daily operations.
    • I owned features across the stack — from SQL Server schema changes to the screens that used them — which meant no hand-offs and no finger-pointing.

  3. Full Stack Developer

    ASTRO-ITB · Oct 2024 - Nov 2024 · Hybrid, Bandung
    • I built ASTRO, a Django platform whose assessment adapts its questions to each business — 90% of the MSMEs we onboarded finished it and kept using it.
    • Five weeks from first commit to launch, shipping alongside an ITB research team and real business owners testing every release.

Stack

What I reach for, grouped by the kind of problem.

Product Engineering

  • TypeScript
  • React
  • Next.js
  • Astro
  • Tailwind CSS
  • shadcn/ui
  • Figma

Backend and Data

  • Node.js
  • Express.js
  • FastAPI
  • ASP.NET
  • PostgreSQL
  • MySQL
  • MariaDB
  • SQL Server

AI and Analytics

  • PyTorch
  • Transformers
  • Scikit-Learn
  • PostHog
  • Google Ads
  • Meta Ads
  • Tableau

Platform and Workflow

  • GitHub
  • Vercel
  • Supabase
  • Firebase
  • GCP
  • Azure
  • Swagger
  • Postman

Off the clock

Jack of all trades. Guitar, four languages, and a lot of kilometres.

Music

  • Guitar
  • Singing

Languages

  • English
  • Mandarin
  • Hokkien
  • Indonesian

Sport

  • Badminton
  • Running
  • Trail

Else

  • Movies
  • Travelling
  • Trying things out